Round Lab Birch Juice Mineral Sun Cream SPF50+ PA++++
Round Lab's Birch Juice Mineral ("무기자차"/inorganic-filter) Sun Cream is SPF50+ PA++++ and uses Zinc Oxide as its sole UV filter — a different filter category from the same brand's organic-filter "Birch Juice Moisturizing Sun Cream" — while keeping the birch sap and hyaluronic acid carried over from that line, plus a patented Dermatic AC3 complex for sebum control. Unlike that organic-filter sibling (a confirmed US reformulation), this mineral-filter version appears to export largely unchanged: the US retail product "Birch Juice Mild-Up UVLock Sunscreen SPF 50+" (Amazon, Ulta, iHerb) declares the same Zinc Oxide 17% active ingredient and the same 34-ingredient inactive list per its FDA DailyMed drug-facts filing, manufactured/marketed through the same company, Seorin Company. (Checked: 2026-09-04)
Specifications
| Volume | 50ml |
|---|---|
| Form | sunscreen cream |
| Named in the product title | Betula Platyphylla Japonica Juice: rank 12 of 35 |
| Vegan certified | No certification found (checked 2026-09-04) |
| Contains petrolatum | No |
| Korea launch | — |
| Renewal history | None recorded |
| Korea vs export | No known difference (verified against a named export-market source) |
| Korea regular price | ₩25,000 |
| Price per 100ml | ₩50,000 / 100ml |
| Global price | $24.99 |
| Retailers | International shipping: Amazon (as "Birch Juice Mild-Up UVLock Sunscreen"), Ulta (as "Birch Juice Mild-Up UVLock Sunscreen"); Sold in Korea only: Olive Young Korea; Shipping scope unverified: Round Lab official site (roundlab.co.kr), iHerb (as "Birch Juice Mild-Up UVLock Sunscreen") |
| Full ingredient list (INCI) | Water, Zinc Oxide, Cyclohexasiloxane, Butyloctyl Salicylate, Propanediol, Propylheptyl Caprylate, Isododecane, Caprylyl Methicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Methyl Methacrylate Crosspolymer, Methyl Trimethicone, Betula Platyphylla Japonica Juice, Cryptomeria Japonica Leaf Extract, Nelumbo Nucifera Leaf Extract, Saccharomyces Ferment Filtrate, Glyceryl Glucoside, Sodium Hyaluronate, Hyaluronic Acid, Glycerin, Butylene Glycol, Triethoxycaprylylsilane, Artemisia Annua Extract, Anthemis Nobilis Flower Oil, Pinus Sylvestris Leaf Oil, Ethylhexylglycerin, Ascorbic Acid, Tocopherol, Glyceryl Caprylate, Caprylyl Glycol, Polymethylsilsesquioxane, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, 1,2-Hexanediol, Polyglyceryl-2 Dipolyhydroxystearate, Disteardimonium Hectorite, Magnesium SulfateKorean labelingWater, Zinc Oxide, Cyclohexasiloxane, Butyloctyl Salicylate, Propanediol, Propylheptyl Caprylate, Isododecane, Caprylyl Methicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Methyl Methacrylate Crosspolymer, Methyl Trimethicone, Betula Platyphylla Japonica Juice, Cryptomeria Japonica Leaf Extract, Nelumbo Nucifera Leaf Extract, Saccharomyces Ferment Filtrate, Glyceryl Glucoside, Sodium Hyaluronate, Hyaluronic Acid, Glycerin, Butylene Glycol, Triethoxycaprylylsilane, Artemisia Annua Extract, Anthemis Nobilis Flower Oil, Pinus Sylvestris Leaf Oil, Ethylhexylglycerin, Ascorbic Acid, Tocopherol, Glyceryl Caprylate, Caprylyl Glycol, Polymethylsilsesquioxane, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, 1,2-Hexanediol, Polyglyceryl-2 Dipolyhydroxystearate, Disteardimonium Hectorite, Magnesium Sulfate |
| Functional cosmetic status | Registered (UV protection) |
| SPF | SPF50+ |
| PA | PA++++ |
| UV filters | Zinc Oxide |
Is it OK for sensitive skin?
Declared facts only, not a suitability verdict: no fragrance listed; no labeled fragrance allergens declared; no denatured alcohol listed. No irritation-related fact here implies suitability for any skin type.
How much of the key actives does it contain?
Betula Platyphylla Japonica Juice (named in the product title): rank 12 of 35.
Can I buy it outside Korea?
International shipping: Amazon (as "Birch Juice Mild-Up UVLock Sunscreen"), Ulta (as "Birch Juice Mild-Up UVLock Sunscreen"); Sold in Korea only: Olive Young Korea; Shipping scope unverified: Round Lab official site (roundlab.co.kr), iHerb (as "Birch Juice Mild-Up UVLock Sunscreen"); Global price: $24.99.
Is the Korean mineral-filter Birch Juice sunscreen different from the version sold in the US?
No meaningful formula difference found — Korea's SPF50+ PA++++ "자작나무 무기자차 선크림" uses Zinc Oxide as its only UV filter, and the US retail product "Birch Juice Mild-Up UVLock Sunscreen SPF 50+" (sold on Amazon, Ulta, and iHerb) lists Zinc Oxide 17% as its sole active ingredient with the same 34-ingredient inactive-ingredient set, per its FDA DailyMed drug-facts filing, both manufactured/marketed through Seorin Company. The only differences found are labeling ones: the US version drops the PA rating (not used under FDA rules) and is marketed as "SPF 50+ Broad Spectrum," and the US product name does not literally translate 무기자차 (checked 2026-09-04). This contrasts with the same brand's organic-filter "Birch Juice Moisturizing Sun Cream," which is a confirmed US reformulation with different UV filters.
Is it a functional cosmetic under Korean law?
Yes, but only for one claim so far — the Olive Young KR listing's mandatory product-info disclosure confirms it has passed Korea's MFDS functional-cosmetics review (checked 2026-09-04), and as a published SPF/PA sunscreen it qualifies for the UV-protection claim. No brand-stated whitening or wrinkle-improvement claim was found for this specific SKU (unlike the organic-filter Birch Juice Moisturizing Sun Cream, which lists three claims) — the specific notice/report number is not published on the retail page.
Is it vegan?
No vegan certification mark was found on the Olive Young KR listing or Round Lab's own store, checked 2026-09-04.
Sources
Olive Young product page — Checked: 2026-09-04